Porous cellulose diacetate-SiO2 composite coating on polyethylene separator for high-performance lithium-ion battery
Chen, WJ; Shi, LY; Wang, ZY; Zhu, JF; Yang, HJ; Mao, XF; Chi, MM; Sun, LN; Yuan, S; Yuan, S (reprint author), Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China.
2016
发表期刊CARBOHYDRATE POLYMERS
ISSN0144-8617
卷号147期号:-页码:517—524
文章类型期刊文献
摘要The developments of high-performance lithium ion battery are eager to the separators with high ionic conductivity and thermal stability. In this work, a new way to adjust the comprehensive properties of inorganic-organic composite separator was investigated. The cellulose diacetate (CDA)-SiO2 composite coating is beneficial for improving the electrolyte wettability and the thermal stability of separators. Interestingly, the pore structure of composite coating can be regulated by the weight ratio of SiO2 precursor tetraethoxysilane (TEOS) in the coating solution. The electronic performance of lithium ion batteries assembled with modified separators are improved compared with the pristine PE separator. When weight ratio of TEOS in the coating solution was 9.4%, the composite separator shows the best comprehensive performance. Compared with the pristine PE separator, its meltdown temperature and the break-elongation at elevated temperature increased. More importantly, the discharge capacity and the capacity retention improved significantly. (C) 2016 Elsevier Ltd. All rights reserved.
关键词Polymer-coated Separator Electrolyte Cells Enhancement Nonwoven Safety Layer
DOI10.1016/j.carbpol.2016.04.046
收录类别SCI
语种英语
WOS记录号WOS:000376449300059
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/25805
专题中科院上海应用物理研究所2011-2018年
通讯作者Wang, ZY; Yuan, S (reprint author), Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China.
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Chen, WJ,Shi, LY,Wang, ZY,et al. Porous cellulose diacetate-SiO2 composite coating on polyethylene separator for high-performance lithium-ion battery[J]. CARBOHYDRATE POLYMERS,2016,147(-):517—524.
APA Chen, WJ.,Shi, LY.,Wang, ZY.,Zhu, JF.,Yang, HJ.,...&Yuan, S .(2016).Porous cellulose diacetate-SiO2 composite coating on polyethylene separator for high-performance lithium-ion battery.CARBOHYDRATE POLYMERS,147(-),517—524.
MLA Chen, WJ,et al."Porous cellulose diacetate-SiO2 composite coating on polyethylene separator for high-performance lithium-ion battery".CARBOHYDRATE POLYMERS 147.-(2016):517—524.
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